Posted by **Anonymous** on Thursday, April 7, 2011 at 2:44pm.

The moment of inertia of a solid uniform sphere of mass M and radius R is given by the equation I=(2/5)MR2 . Such a sphere is released from rest at the top of an inclined plane of height h, length L, and incline angle è. If the sphere rolls down the plane, find its speed at the bottom of the incline.

- Physics -
**bobpursley**, Thursday, April 7, 2011 at 3:00pm
Do this from an energy perspective. The KE at the bottom (rolling and translational) is equal to the potential energy lost.

PE=ke

m*L*sinTheta*g=1/2 m v^2 + 1/2 I w^2

where w=v/r

so put in your function for I, and w, and solve for v

- Physics -
**Anonymous**, Thursday, April 7, 2011 at 3:23pm
thanks! i got 7/10 squared! (2/5)mr squared (v/r)squared=mvsquared (1/2 +1/ =7/10

## Answer this Question

## Related Questions

- college physics - Two solid spheres A and B are made from the same material. The...
- college physics - Two solid spheres A and B are made from the same material. The...
- physics - Two solid spheres A and B are made from the same material. The mass of...
- physics - A solid sphere of uniform density starts from rest and rolls without ...
- physics - A solid sphere of radius 23 cm is positioned at the top of an incline ...
- physics - solid sphere of uniform density starts from rest and rolls without ...
- Physics - A solid sphere of uniform density starts from rest and rolls without ...
- Physics - A hollow sphere has a mass of 15 kg, an inner radius of 12 cm and an ...
- Physics - A hollow sphere has a mass of 15 kg, an inner radius of 12 cm and an ...
- Physics - Four objects - a hoop, a solid cylinder, a solid sphere, and a thin, ...

More Related Questions